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# TextDirectionHeuristic

`public interface TextDirectionHeuristic`
``

android.text.TextDirectionHeuristic

Interface for objects that use a heuristic for guessing at the paragraph direction by examining text.

## Summary

### Public methods
`abstract boolean` | `isRtl(char[] array, int start, int count)` Guess if a chars array is in the RTL direction or not.
`abstract boolean` | `isRtl(CharSequence cs, int start, int count)` Guess if a `CharSequence` is in the RTL direction or not.

## Public methods

### isRtl

    public abstract boolean isRtl (char[] array,
                    int start,
                    int count)

Guess if a chars array is in the RTL direction or not.

Parameters
`array` | `char`: the char array.
`start` | `int`: start index, inclusive.
`count` | `int`: the length to check, must not be negative and not greater than `array.length - start`.

Returns
`boolean` | true if all chars in the range are to be considered in a RTL direction, false otherwise.

### isRtl

    public abstract boolean isRtl (CharSequence cs,
                    int start,
                    int count)

Guess if a `CharSequence` is in the RTL direction or not.

Parameters
`cs` | `CharSequence`: the CharSequence.
`start` | `int`: start index, inclusive.
`count` | `int`: the length to check, must not be negative and not greater than `CharSequence.length() - start`.

Returns
`boolean` | true if all chars in the range are to be considered in a RTL direction, false otherwise.

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